頭あたまの皿さら

expression, noun

flat top of the cranium

Anatomical term referring to the flat upper surface of the skull.

• 解かい剖ぼう学がくの授じゅ業ぎょうで、頭あたまの皿さらの構こう造ぞうについて学まなんだ。

  In anatomy class, we learned about the structure of the flat top of the cranium.

expression, noun

plate-like depression on a kappa's head

Refers to the dish-shaped hollow on top of a kappa's head, which holds water and is central to kappa folklore.

See also: 河童

• 河童かっぱの頭あたまの皿さらが乾かわくと、力ちからが出だせなくなるという。

  It is said that when the plate on a kappa's head dries out, it loses its strength.